Enter BIOS/UEFI setup (restart and press the key shown on boot, commonly F2, Del, Esc, or F10)
Find the virtualization setting under tabs like Advanced, CPU Configuration, Security, or Performance
Enable one of the following (wording varies by manufacturer)
Intel: Intel Virtualization Technology (VT-x)
Intel: VT-d (optional, for I/O virtualization)
AMD: SVM Mode (AMD-V)
Save and exit (commonly F10, then confirm)
In Windows, verify it’s enabled
Open Task Manager → Performance → CPU → check “Virtualization: Enabled”
In Linux, verify it’s enabled
Run: `lscpu | grep Virtualization`
Run: `egrep -c ‘(vmx|svm)’ /proc/cpuinfo`